When is someone not justified in using deadly force to protect their property?

Example: You wake up in the middle of the night and hear rumbling in your living room. You grab a weapon (that could potentially hurt the person). The man/woman is trying to take your TV but drops it and tries to flee when being caught.

You have 2 options.
A) Let him flee.
B) Fire your weapon at him.

Remember: Deadly force is justified if a person unlawfully enters onto property and the property owner reasonably believes that the trespasser is about to commit a felony or do harm to a person on the premises. ... Use of deadly force is never justified to protect PERSONAL PROPERTY other than a dwelling.

Hopefully this example helped.